Male external genitalia and perineum

Inferior fascia of urogenital diaphragm; deep and dorsal arteries of penis

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Image #167-3

Male external genitalia and perineum

Inferior fascia of urogenital diaphragm; deep and dorsal arteries of penis

The left crus of the penis has been retracted. The cavernous tissue of the crus has been exposed by removing a portion of the tunica albuginea.

1. Corpus spongiosum of penis
2. Inferior pubic ramus
3. Bulbospongiosus muscle
4. Obturator externus muscle
5. Crus of penis
6. Ischiocavernosus muscle
7. Perineal artery
8. Superficial transverse perineal muscle (poorly developed)
9. Central tendon of perineum
10. Anus
11. Spermatic cord (cut across)
12. Body of pubic bone
13. Crus of penis (pointer indicates tunica albuginea which has been partially removed elsewhere on crus to reveal underlying cavernous tissue)
14. Upper pointer: Dorsal artery of penis Lower pointer: Deep artery of penis
15. Pectineus muscle (cut across)
16. Superior pubic ramus
17. Upper pointer: Obturator canal Lower pointer: Acetabular branch of obturator artery
18. Ramus of ischium
19. Inferior fascia of urogenital diaphragm (perineal membrane)
20. Bulb of penis